Apple crumble cake

This cake it reminds me of my grandma's house. She always have apples in her house. She lives in a small town with many fields around, it's easy to find fresh veggies and fruits. This is my grandma's apple crumble cake. Its perfect for breakfast or even for your afternoon tea and coffee!

Ingredients

for the crumble:

• ½ cup unsalted butter, melted (125 gr)
• 1 ¼ cup plain flour (170 gr)
• 1/3 cup light brown sugar (70 gr.)
• 1/3 cup granulated sugar (68 gr.)
• 2 teaspoons cinnamon 

for the cake:

• 2 cups plain flour ( 270 gr)
• 1 tsp baking powder
• ½ tsp baking soda
• ½ cup unsalted butter, room temperature (125 gr.)
• ¾ cup caster sugar (156 gr.)
• 1 tsp vanilla extract
• 3 large eggs
• ¼ cup greek yogurt (20 gr.)
• 2 tbsp milk
• 2 medium green apples, cubes (granny smith)
• icing sugar for dusting

Instructions

for the crumble:

• In a bowl of a stand mixer combine all the ingredients and mix with the paddle attachment until mix looks like sand. 
• Leave the crumble a side.

for the cake:

• In a medium bowl whisk together the flour, baking powder, and baking soda.
•  In the bowl of an electric mixer, beat the butter for 2 minutes until it’s light and fluffy.
•  Add the sugar and vanilla and continue to beat for an additional 1-2 minutes. Add the eggs, one at a time. Stop the mixer and scrape down the sides of the bowl. 
• With the mixer on low speed, add the dry ingredients in three editions alternating with the greek yogurt and milk. Finally add the apples and mix by hand. Do not overmix.
• Spread the batter into a prepared pan. Top with crumb and bake in a preheated oven at 180C degrees for 45-55 minutes or until a skewer inserted in the center of the cake comes out clean (or with just a few crumbs). Leave it in the pan to cool for 10 minutes before removing from springform pan.
• Dust with icing sugar and serve with vanilla ice cream!